( c) the prophet ( - صلى الله عليه وسلم -) said to the Sah?b? who performed his Sal?t improperly: ‘A muslim’s Sal?t is not complete and correct unless he performs perfect wud?’ as was ordered by All?h ( - عز وجل -) , then recites Takb?r ... then does Ruk?‘ till all his joints are settled and relaxed in their positions then raises himself from Ruk?‘ reciting “Sami’ all?hu Liman Hamidah”. And stands completely till his back is fully erect ... .’. (1)
To conclude ... ‘In order to achieve Tuma’n?nah in [Ruk?‘] in Sal?t, one has to do the following:
1 - Holding the knees with one’s hands [in Ruk?‘].
2 - Spreading fingers.
3 - Straightening one’s back.
4 - Staying in the same posture as long as it takes till all the joints settle in their positions.
All of these act are affirmed in many [authentic] narrations’. (2)
The lack of Tuma’n?nah [in the Ruk?‘ and Suj?d] has many negative effects on the muslim in this world and the hereafter, some of which are the following: (3)
(a) The cause of poverty. Indeed, achieving Tuma’n?nah in Sal?t and doing it perfectly are important sources of lawful wealth and ignoring them closes the doors of goodness.
(b) Loosing one’s good reputation and respect -especially if one is of the ‘Ulamah- and people trust in one’s words and knowledge.
(c) Causing oneself to be insulted by others and one’s testimony be rejected.
(1) Narrated by Ab? D?w?d, An Nas?’? and others through an authentich chain of narrators. See: “Tam?mul Minnah” (p. 191).
(2) See: “Tam?mul Minnah” (p. 189), “Ibk?r Al-Minan”, section: Al-I’tid?l wat Tuma’n?nah Fir ruku ‘ was Suj?d” (p. 224, ... ) and “Mu‘addalus Sal?t” by Muhammad Al-’Afand? Ar-R?m? Al-Barkal? (d. 981 H.).
(3) Shaikh Al? Al-Q?r? mentioned all of them in “Fus?lun Muhimmah” (foil 76, 77). It is now under publication.