Sunan an-Nasa'i 1871

Suwayd ibn Nasr narrated to us: ‘Abdullah narrated to us: ‘Umar ibn Sa‘id ibn Abi Husayn informed us that ‘Amr ibn Shu‘ayb wrote to ‘Abdullah ibn ‘Abd al-Rahman ibn Abi Husayn to console him for the death of his son. In his letter, he mentioned that he had heard his father relate from his grandfather, ‘Abdullah ibn ‘Amr ibn al-‘As, that the Messenger of Allah said: ‘When Allah takes away from among the people of the earth someone dearly loved by His believing servant, and the servant bears it patiently, seeks reward from Allah, and says what he has been commanded to say, Allah accepts no reward for him less than Paradise.’