Muwatta Malik · Hadith 662

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، أَنَّ سَعْدَ بْنَ أَبِي وَقَّاصٍ، وَعَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَا يَحْتَجِمَانِ وَهُمَا صَائِمَانِ ‏.‏

Yahya related to me from Malik from Ibn Shihab that Sad ibn Abi Waqqas and Abdullah ibn Umar used to be cupped while they were fasting

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).