It is narrated from Shurahbil bin al-Simt (may Allah have mercy on him) that, when he was the governor of Hims, he called Sayyiduna Ka'b bin Murrah (may Allah be pleased with him) and said: "Narrate to us a hadith of the Messenger of Allah (peace and blessings be upon him), and be careful (in reporting it)."
He said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Any Muslim man who frees a Muslim, Allah Almighty will free, in return for each of his limbs, each limb of him (the one who freed him) from the Fire of Hell."
Then he (Shurahbil, again) said: "Narrate to us a hadith of the Messenger of Allah (peace and blessings be upon him), and be careful."
He (Sayyiduna Ka'b bin Murrah (may Allah be pleased with him)) said: The Messenger of Allah (peace and blessings be upon him) supplicated against the tribe of Mudar, so years of drought came upon them which wiped out their wealth, or as much of it as Allah willed. Then I said: O Messenger of Allah, the tribe of Mudar has been destroyed, so supplicate to Allah for them. He (peace and blessings be upon him) said: "You are very bold with me." Then he spoke to him (peace and blessings be upon him) again about this, so he (peace and blessings be upon him) stood up on Friday and supplicated: 'Allahumma-sqina ghaythan mughithan, mari'an, mihra'an, tabaqan, 'ajilan ghayra ra'ith, nafi'an ghayra darr' (O Allah, give us rain that brings relief, wholesome, pouring, covering (the whole land), coming quickly and not delayed, beneficial and not harmful). So abundant rain was sent down upon them.
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ubayd bin Abi al-Ja'd (may Allah have mercy on him) except al-Ajlah (may Allah have mercy on him), from al-Ajlah only Shayban (may Allah have mercy on him), and from Shayban only Muhammad bin Shu'ayb (may Allah have mercy on him), and Hisham bin Ammar (may Allah have mercy on him) is alone in narrating it. Al-Ajlah is in fact Abu Hujayyah Yahya bin Abdullah (may Allah have mercy on him)."
Hadith Referenceالمعجم الأوسط / باب الميم / 6754
Hadith Takhrij«أخرجه ابن حبان فى «صحيحه» برقم: 4614، 4616، والحاكم فى «المستدرك» برقم: 1230، 1231، والنسائي فى «المجتبى» برقم: 3144 / 3، والنسائي فى «السنن الكبرى» برقم: 4337، 4860، 4863، 4861، 4862، وأبو داود فى «سننه» (4/54) [دون رقم في الترقيم المختار]، والترمذي فى «جامعه» برقم: 1634، وابن ماجه فى «سننه» برقم: 1269، 2522، والبيهقي فى «السنن الكبرى» برقم: 6534، 18582، 21364، وأحمد فى «مسنده» برقم: 18346، 18347، 18348، 18349، 18350، 18351، 18344، 19198، 19199، والطيالسي فى «مسنده» برقم: 1294، 1295، 1296، وعبد بن حميد فى «مسنده» برقم: 372، وعبد الرزاق فى «مصنفه» برقم: 3949، وابن أبي شيبة فى «مصنفه» برقم: 12774، 19732، 29835، والطحاوي فى «شرح معاني الآثار» برقم: 1896، والطحاوي فى «شرح مشكل الآثار» برقم: 725، 729، 728، 726، 730، 731، والطبراني فى «الكبير» برقم: 755، 756، 757، (20/318)، (20/319) [دون رقم في الترقيم المختار]»