The ‘Ulamah held that the Ruk?‘, Suj?d, rising from Ruk?‘ and sitting between the two Sujuds are all done perfectly when they are done properly.
This obligation is born out from the soundest and most authentic ah?d?th, and upon which all of the ‘Ulamah agreed’. (1)
The following are some of the ah?d?th that affirm the obligation of rising completely from Ruk?‘:
(a) Ab? Mas’?d Al-Badri ( - رضي الله عنه -) said: The prophet ( - صلى الله عليه وسلم -) said: ‘A muslims’s Sal?t is not correct unless he stands after Ruk?‘ and sits after Suj?d with his back upright’. (2)
This had?th states clearly that rising from Ruk?‘ and Suj?d till one’s back is straight is an obligation [Rukn] in Sal?t without which Sal?t is rendered invalid. (3)
(b) Ab? Qat?dah narrated that the prophet ( - صلى الله عليه وسلم -) said: ‘The worst of those who steal are those who steal from their own Sal?t by doing its Ruk?‘ and Suj?d improperly; they are not fully occupied with it’. [In another narration], he ( - صلى الله عليه وسلم -) said: ‘ ... their backs are not stretched straight in Ruk?‘ and Suj?d’. (4)
Indeed those who steal from their religion are the worst of thieves. (5)
(c) Abdur Rahman Ibn Shibl said: ‘The prophet ( - صلى الله عليه وسلم -) forbade [us from] the pecking of the crow [in Sal?t], the spreading of [one’s] arms on the ground [in Suj?d] like lions do and from
(1) “Tasfir Al-Qurtub?” (vol. 11 / pp. 124 - 125) and “At-Tathkirah” (p. 338).
(2) Narrated by Ahmad in “Al-Musanad” (vol. 4 / p. 122), Ab? D?w?d in “As-Sunnan” (no. 855), At-Tirmith? in “Al-J?mi‘ ” (no. 265), Ibn M?jah in “As-Sunnan” (no. 870), and Ibn Hibban in his “Sah?h” (no. 501). See: “Sah?h Al-J?mi‘ As-Sag?r” (no. 7224), (7225) and “Mishk?t Al-Mas?b?h” (no. 878).
(3) “As-Sal?tu Wahukmu Tarikikh?” (p. 142).
(4) Narrated by Ahmad in “Al-Musnad” (vol. 5 / p. 310) and was authenticated by Al-H?kim and so did Ath - Thahab?, it is indeed authentic. See: “Sah?h Al-J?mi‘ As-Sag?r” (no. 966), (no. 986), “Mishk?tul Mas?b?h” (no. 885) and “Sah?h At-Targ?b wat Tarh?b” (no. 525)
(5) “As-Sal?tu Wahukmu T?rikih?” (p. 145).