Muwatta Malik 1781

وَحَدَّثَنِي مَالِكٌ، عَنْ نَافِعٍ، أَنَّ ابْنَ عُمَرَ، كَانَ يُقَرَّبُ إِلَيْهِ عَشَاؤُهُ فَيَسْمَعُ قِرَاءَةَ الإِمَامِ وَهُوَ فِي بَيْتِهِ فَلاَ يَعْجَلُ عَنْ طَعَامِهِ حَتَّى يَقْضِيَ حَاجَتَهُ مِنْهُ ‏.‏

Malik related to me from Nafi that one time as Ibn Umar was served his evening meal, he heard the recitation of the Imam while he was in his house and he did not hurry from his food until he had finished what he needed

Reference

Muwatta Malik 1781

In-book

Book 54, Hadith 19