WE RELATE FROM the Sunan of Ibn Mājah and the book of Ibn as-Sunnī, with a ṣaḥīḥ or ḥasan isnād, from Maymūn ibn Mihrān from ‘Umar ibn al-Khaṭṭāb 
, who reported that the Messenger of Allah 
said: “When you visit a sick man, instruct him to supplicate for you, for his du‘ā’ is like the du‘ā’ of the angels.” [1].However, Maymūn never actually met ‘Umar .
, who reported that the Messenger of Allah said: “When you visit a sick man, instruct him to supplicate for you, for his du‘ā’ is like the du‘ā’ of the angels.” [1].However, Maymūn never actually met ‘Umar .References
[1] Ibn Mājah (1441) and Ibn as-Sunnī (562). This hadith is mursal from the Tābi‘ī in the fourth level of narrators. Al-Futūḥāt (4/91). The author of az-Zawā ’ id states that its chain is ṣaḥīḥ and its narrators are trustworthy, except that it has a break in the transmission.