Sunan Abi Dawud — The Rites of Hajj (Kitab Al-Manasik Wa'l-Hajj) — Hadith No: 2025
Translation
This tradition has also been transmitted by Ibn ‘Umar through a different chain of narrators like the one narrated by Al Qa’nabi . This version has “ I forgot to ask the number of rak’ahs he offered