وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ مَسْعُودٍ، كَانَ يَدِبُّ رَاكِعًا ‏.‏

Yahya related to me from Malik that he had heard that Abdullahibn Masud used to move forward while in ruku. Translation Not Available

Book Ref: Muwatta Imam Malik Book 9 Hadith 399
Web Ref:  Muwatta Imam Malik Book 9 Hadith 68