Sunan an-Nasa'i, Hadith 5564 ⓘ
It was narrated that Abu Idris said: "I saw Anas bin Malik when some Busr which had extra bits were brought to him, and he started to cut them off."
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَخْبَرَنَا عَبْدُ اللَّهِ، عَنْ هِشَامِ بْنِ حَسَّانَ، عَنْ أَبِي إِدْرِيسَ، قَالَ شَهِدْتُ أَنَسَ بْنَ مَالِكٍ أُتِيَ بِبُسْرٍ مُذَنَّبٍ فَجَعَلَ يَقْطَعُهُ مِنْهُ .
also referenced under: Book 51, Hadith 25 (In-Book) & Volume 6, Book 51, Hadith 5566 (DarusSalam)
Qatadah said: "Anas used to tell us to cut off the extra bits."
أَخْبَرَنَا سُوَيْدٌ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ سَعِيدِ بْنِ أَبِي عَرُوبَةَ، قَالَ قَتَادَةُ كَانَ أَنَسٌ يَأْمُرُ بِالتَّذْنُوبِ فَيُقْرَضُ .
also referenced under: Book 51, Hadith 26 (In-Book) & Volume 6, Book 51, Hadith 5567 (DarusSalam)