Muwatta Malik, Book 18, Hadith 31 (USC-MSA) ⓘ
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.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، أَنَّ سَعْدَ بْنَ أَبِي وَقَّاصٍ، وَعَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَا يَحْتَجِمَانِ وَهُمَا صَائِمَانِ .
also referenced under: Book 18, Hadith 665 (In-Book)