مختصر صحيح مسلم
Mukhtasar Sahih Muslim
Virtues of Other Companions
Brotherhood among the Prophet's Companions.
It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) established brotherhood between Sayyiduna Abu Ubaidah al-Jarrah and Sayyiduna Abu Talhah (may Allah be pleased with them both).