Sayyiduna Ibn Umar (may Allah be pleased with them both) said: I saw the Prophet (peace and blessings be upon him) enter the House of Allah, and with him (peace and blessings be upon him) was a group: Sayyiduna Usamah bin Zayd, Sayyiduna al-Fadl bin Abbas, Sayyiduna Uthman bin Talhah and Sayyiduna Bilal (may Allah be pleased with them). Then he (peace and blessings be upon him) closed the door, so I stood at the door. Then when the Messenger of Allah (peace and blessings be upon him) came out, the first to meet me was Bilal (may Allah be pleased with him). I asked: Where did the Messenger of Allah (peace and blessings be upon him) pray? He said: "Between the two pillars."
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1046