Abu Dawud
The Rites of Hajj
Book Number: 004 / Hadith Number: 1807
Narated By Abdullah ibn Abbas : The Prophet (pbuh) heard a man say: Labbayk (always ready to obey) on behalf of Shubrumah. He asked: Who is Shubrumah? He replied: A brother or relative of mine. He asked: Have you performed hajj on your own behalf? He said: No. He said: perform hajj on your own behalf, then perform it on behalf of Shubrumah.