Hadith 8:687
Abu Bakr narrated to us, he said: Waki’ narrated to us, from Sufyan, from Mujahid, who said: They used to consider it recommended that when they visited the House (the Kaaba), they should come to Zamzam and drink from it.
حدثنا أبو بكر قال حدثنا وكيع عن سفيان عن مجاهد قال كانوا يستحبون إذا دعوا البيت أن يأتوا زمزم فيشربوا منها