Silsilat al-Ahadith al-Sahihah

Sayyiduna Zubair bin Al-Awwam (may Allah be pleased with him) says: On the day of Uhud, the Noble Prophet (peace and blessings of Allah be upon him) was wearing two coats of armor. He wanted to climb a rock, but he was not able to do so. Sayyiduna Talhah (may Allah be pleased with him) sat down below, and the Noble Prophet (peace and blessings of Allah be upon him) placed his foot on him and climbed the rock. At that time, he (peace and blessings of Allah be upon him) said: "Talhah has made Paradise obligatory for himself."