Abu Burda Bin Abi Musa Al-Ash`ari

Narrated Abu Burda Bin Abi Musa Al-Ash`ari:`Abdullah bin `Umar said to me, "Do you know what my father said to your father once?" I said, "No." He said, "My father said to your father, 'O Abu Musa, will it please you that we will be rewarded for our conversion to Islam with Allah's Messenger (ﷺ) and our migration with him, and our Jihad with him and all our good deeds which we did, with him, and that all the deeds we did after his death will be disregarded whether good or bad?' Your father (i.e. Abu Musa) said, 'No, by Allah, we took part in Jihad after Allah's Messenger (ﷺ) , prayed and did plenty of good deeds, and many people have embraced Islam at our hands, and no doubt, we expect rewards from Allah for these good deeds.' On that my father (i.e. `Umar) said, 'As for myself, By Him in Whose Hand `Umar's soul is, I wish that the deeds done by us at the time of the Prophet (ﷺ) remain rewardable while whatsoever we did after the death of the Prophet (ﷺ) be enough to save us from Punishment in that the good deeds compensate for the bad ones.' " On that I said (to Ibn `Umar), "By Allah, your father was better than my father

It was narrated from Abu Burdah bin Abi Musa Al-Ash'ari, from his father:"That the Prophet [SAW] sent him to Yemen, then he sent Mu'adh bin Jabal after that. When he arrived he said: 'O people, I am the envoy of the Messenger of Allah [SAW] to you.' Abu Musa gave him a cushion to sit down, then a man was brought who had been a Jew, then he became a Muslim, then he reverted to Kufr. Mu'adh said: 'I will not sit down until he is killed; this is the decree of Allah and His Messenger,' (saying it) three times. When he was killed, he sat down