Muwatta
Malik
موطأ مالك
09
Shortening the Prayer
كتاب قصر الصلاة فى السفر
Chapter 21: What to Do when Entering while the Imam is in Ruku
Muwatta Malik 402
Yahya related to me from Malik that he had heard that Abdullah ibn Masud used to move forward while in ruku.
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ مَسْعُودٍ، كَانَ يَدِبُّ رَاكِعًا .