Munthir’s opinions, some of the Salaf, (1) some ‘Ulamah (2) and some of those well versed in religion’s rulings. (3)
Ibn Hajar criticised Al-Karm?n?’s statement saying: ‘He forgot what he himself mentioned of An-Nawaw?’s relating Ahmad’s opinion. Ibn Al-Munthir also related from Muhammad Ibn Ali that such an act [i.e. uncovering one’s shoulders in Sal?t] is not permissible.
At-Tirmith?’s statement indicates the existence of disagreement amongst ‘Ulamah concerning this issue. At-Tah?w? dedicated a whole chapter in his “Sharh Al-Ma‘?n?” (4) and reported in it that Ibn ‘Umar considered this act as prohibited, so did T?wus and An-Nakh‘?. Other ‘Ulamah reported the same opinion from Ibn wahb and Ibn Jar?r. Shaikh Taqy Ad-D?n As-subk? related that Ash-Sh?fi‘? considered covering shoulders in Sal?t as something obligatory; As-Subki agreed with him. However, most of Ash-Sh?fi‘? books report a contradictory opinion’. (5)
Al-Q?d? said: ‘It is related that Ahmad’s statement regarding this issue indicates that such an act [covering the shoulders] is not a condition in Sal?t. Muthannah related this from Ahmad when the later gave the ruling regarding the one who does his Sal?t wearing Sar?w?l and a garment that covers only one shoulder. Ahmad said: ‘This is detested”.
Ahmad was then asked: ‘Must this man repeat his Sal?t?’ He replied in the negative.
Ahmad’s opinion; however, bears many possibilities one of which is that he believed that the one who covers one of his shoulders has carried out the ruling of the had?th literally.
(1) “Sharh Sah?h Muslim” by An-Nawaw? (vol. 4 / p. 232).
(2) “Al Majm?’“(vol. 3 / p. 175).
(3) “J?mi’At-Tirmith? “(vol. 1 / p. 168).
(4) “Sharh Al-Ma‘?n? “(vol. 1 / p. 377).
(5) Fath Al-B?r? (vol. 1 / p. 472).