Question About Muwatta Imam Malik
This is not mentioned in muwatta. Imam Malik himself used to do rafa yadain. It is narrated from him by his following students: 1)Ismail bin abi awais (in Jami Tirmzi) 2)Ma’an bin isa qazzaz(in Jami Tirmzi) 3)Ibn Wahb 4)Abu Musab Zuhri. The idea of imam Malik not doing rafa yadain was popularized by a judge of Tunisia named Asad ibn Furat. He wrote the book “Al Mudawanah tul Qubra” and attributed it to imam Malik. Today Malikis donot do rafa yadain based on this book. But these types of matters(Rafa yadain) are not that important so no harsh or strict stance should be taken on this matter.