Du'a Nudba is one of the major Shiite prayers about Muhammad al-Mahdi and his occultation.
 Nudba means to cry and Shiites read the prayer for ask to help them during the occultation.
 The supplication recite in Eid al-Fitr, Eid al-Adha, Eid al-Ghadeer, and in every Friday morning.
 Mazar al-Kabir, Mazar al-Ghadim, and Mesbaho al-Zaer were narrated the supplication.
 These books were written with authentic narrators such as Sayyed Ibn Tawus.
 Muhammad Baqir Majlisi wrote this prayer in Zaad-ul-Maad from Imam Ja'far al-Sadiq.
 Also, Albazofari, a person who lived in minor occultation, narrated from The Four Deputies of Imam Mahdi that Imam Mahdi said to read the prayer.
Al-Baggara (Arabic: السادة البَقارة‎ ‎ , also spelled "Baqqara", "Buggara") is a large deep-rooted Sunni Muslim Arab tribe widespread through Iraq, Syria and slightly of them in Turkey and Jordan, And they were called by this name in relation to their ancient grandfather Muhammad Baqir.
 There is a tribe with the same name in western Sudan's Darfur area and neighbouring Chad.
They are also known as Baggara Arabs in English.They are cattle herders.
Amina Begum Bint al-Majlisi was a female Safavid mujtahideh.
 She was the daughter of the great Safavid religious scholar Mulla Muhammad Taqi Majlisi and granddaughter of the mujtahideh Zubaiyda, who was in turn the daughter of the great philosopher Mulla Sadra.
 Amina's brother was Mulla Muhammad Baqir Majlisi, the author of the well-known work Bihar al-anvar, to which Amina contributed.
 She married a student of her father's, Mullah Muhammed Saleh Mazandarani.
 The family lived in Isfahan, the capital city of the Safavid Empire.
 The city of Isfahan has a long educational tradition of Shiite ‘Alimat (Islamic preachers) and Muhaddithat (traditionalists).
 The practice reached to a peak during the Safavid era.
Azad was born in Delhi in a highly educated Persian immigrant family.
 His mother died when he was four years old.
 His father, Muhammad Baqir (c.1810-1857), was educated at the newly founded Delhi College.
 His father Muhammad Baqir died by the punishment or summoned from the court because of his favour with Muslims.
 Besides his many other activities he worked in the British administration.
 In early 1837, Muhammad Baqir bought a press and launched the "Delhi
He completed his studies in Mashhad, Qom and Najaf were sought and was awarded the degree of Ijtihad.
 Muhammad Baqir Rizvi Madras, Mirza Javad Maleki Tabrizi, Sheikh Ali Shah Abadi and Abdul-Karim Ha'eri Yazdi, Abu al-Hasan Isfahani, Muhammad Hosein NĀʾĪNĪ and Sheikh Ziauddin Iraqi were his professors."
Ayatullah Sayyid Muhammad Baqir Al-Mūsawī Al-Muhrī (Arabic: السيد محمد باقر الموسوي المهري‎ ‎ ; also spelled Al-Mohri; 25 December 1948 – 4 July 2015) was a Kuwaiti Ayatullah.
 He studied in seminaries in Najaf, Iraq under Grand Ayatollah Abul-Qassim Khoei and Mohammad Baqir al-Sadr.
Muhammad Baqir Yazdi was an Iranian mathematician who lived in the 16th century.
 He gave the pair of amicable numbers 9,363,584 and 9,437,056 many years before Euler's contribution to amicable numbers.
 He was the last notable Islamic mathematician.
 His major book is "Oyoun Alhesab" (Arabic:عيون الحساب).
Jalāl ad-Dīn Muhammad Rūmī (Persian: جلال‌الدین محمد رومی‎ ‎ ), also known as Jalāl ad-Dīn Muhammad Balkhī (جلال‌الدین محمد بلخى ), Mevlânâ/Mawlānā (مولانا , "our master"), Mevlevî/Mawlawī (مولوی , "my master"), and more popularly simply as Rumi (30 September 1207 – 17 December 1273), was a 13th-century Persian Sunni Muslim poet, jurist, Islamic scholar, theologian, and Sufi mystic.
 Rumi's influence transcends national borders and ethnic divisions: Iranians, Tajiks, Turks, Greeks, Pashtuns, other Central Asian Muslims, and the Muslims of South Asia have greatly appreciated his spiritual legacy for the past seven centuries.
 His poems have been widely translated into many of the world's languages and transposed into various formats.
 Rumi has been described as the "most popular poet" and the "best selling poet" in the United States.
Muhammad Baqir ibn Muhammad Akmal al-Wahid Bihbahani, also Vahid Behbahani, or also Waheed Behbahani (1706–1791), was a Twelver Shia Islamic scholar.
 He is widely regarded as the founder or restorer of the "Usuli" school of Twelver Shi'a Islam and as playing a vital role in narrowing the field of orthodoxy in Twelver Shi'a Islam by expanding "the threat of "takfir"" against opposing scholars "into the central field of theology and jurisprudence".
Muhammad Baqir al-Sadr (آية الله العظمى السيد محمد باقر الصدر) (March 1, 1935 – April 9, 1980) was an Iraqi Shia cleric, philosopher, and ideological founder of the Islamic Dawa Party, born in al-Kazimiya, Iraq.
 He is the father-in-law of Muqtada al-Sadr and also a cousin of his father Muhammad Sadeq al-Sadr and Imam Musa as-Sadr.
 His father Haydar al-Sadr was a well-respected high-ranking Shi'a cleric.
 His lineage goes back to Muhammad, through the seventh Shia Imam, Musa al-Kazim.
 (See Sadr family for more details.)

Question: What nationality are Muhammad Baqir Yazdi and Rumi?
Answer: Muslim