What's The Recourse When Someone Adds A Pillar In Salah By Mistake?
“Imran ibn Husayn says that the Prophet (sws) prayed the asr prayer and after three rakat turned to say the salam and then went over to his room. A person called Khirbaq who had very long hands told him of this. He came out in anger dragging his cloak behind him and asked the people: “Is he telling the truth.” When they confirmed it, the Prophet (sws) prayed one more rakat and then turned to say the salam . He then offered two prostrations and then again turned to say the salam” . ( Source : https://sunnah.com/muslim:574 )