Muhammad bin Abi Humayd said: I visited Amrah bint Ubaydullah bin Abbas, and she said: I heard my father say: I heard Sayyiduna Ibn Abbas (may Allah be pleased with them both) say: The Messenger of Allah (peace and blessings be upon him) said: "Whichever believer frees a believer, Allah will free him from Hell for every limb of his (in exchange for every limb of the freed one)."
Imam al-Tabarani (may Allah have mercy on him) said: Al-Nadr narrated it in this way from Muhammad bin Abi Humayd, from Amrah bint Ubaydullah bin Abbas, while Abu Amir al-Aqadi differed from him and said: "Ubaydullah bin Abdullah bin Abbas".
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10594
Amrah bint Ubaydullah bin Abdullah bin Abbas narrated from her father, from Sayyiduna Ibn Abbas (may Allah be pleased with them both), that the Prophet (peace and blessings be upon him) said: "Whoever frees a believer in this world, Allah will free him from Hell for every limb of his."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10595
Ubaydullah bin Abdullah bin Abbas said: We were sitting with Sayyiduna Ibn Abbas (may Allah be pleased with them both) among some young men of Banu Hashim, and a man asked him: Did the Messenger of Allah (peace and blessings be upon him) recite in Zuhr and Asr? He said: No. The man said: Perhaps he (peace and blessings be upon him) recited inwardly.
He said: The Messenger of Allah (peace and blessings be upon him) was a servant who was given a command and he conveyed it. By Allah, he (peace and blessings be upon him) did not single us out above the people in anything except three things: he ordered us to perform ablution thoroughly, he ordered us not to eat charity (sadaqah), and that we should not have donkeys mount mares for breeding.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10596
Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: "The Messenger of Allah (peace and blessings be upon him) ordered us to perform ablution thoroughly."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10597