Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) said that his father was martyred in the Battle of Uhud while he was in debt. The creditors were very harsh in demanding their debts. Sayyiduna Jabir (may Allah be pleased with him) said: I came to the Prophet (peace and blessings be upon him) and spoke to him about it, and he (peace and blessings be upon him) said to them (the creditors): "Let them take the dates of my garden and forgive my father the rest." They refused this, so the Prophet (peace and blessings be upon him) neither gave them the garden nor had the fruit plucked, and then said: "Tomorrow morning I will come to your garden." In the morning he (peace and blessings be upon him) came, walked about in the garden and kept praying for blessing. Then I harvested the fruit and paid the creditors their debts, and some fruit was even left over for me. Then I came to the Messenger of Allah (peace and blessings be upon him) and told him about it. Sayyiduna Umar (may Allah be pleased with him) was also present there. He (peace and blessings be upon him) said to him: "Umar, are you listening to what Jabir is saying?" Sayyiduna Umar (may Allah be pleased with him) replied: "We already knew that you are the true Messenger of Allah. By Allah, you are the Messenger of Allah."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلح / 11347