Sayyiduna Anas bin Malik (may Allah be pleased with him) said: One day Sayyidah Aishah (may Allah be pleased with her) was in her house when she heard a sound that made Madinah shake, so she asked: What is this? The people said: It is a caravan coming from Syria for Abd al-Rahman bin Awf - and it consisted of seven hundred camels. Aishah (may Allah be pleased with her) said: Listen, I heard the Messenger of Allah (peace and blessings be upon him) say: "I saw Abd al-Rahman bin Awf entering Paradise crawling." This reached Abd al-Rahman, so he came to her and asked her about what had reached him, and she told him the whole matter. Abd al-Rahman said: "Then I make you my witness that this caravan, with its loads, its saddles and its saddle-cloths, is (charity) in the path of Allah."
Hadith Referenceالمعجم الكبير للطبراني / العشرة / 262