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  • English_Boxer_Muhammad_Ali_Prayer_Book, page : 368

prayer to correct others, turning one's chest away from the direc-
tion of the Ka'bah, eating, drinking, talking, laughing, coughing
or moaning unnecessarily, etc.

Doing anything which nullifies the ablution, unless one has a
continuing illness which affects him more than two-thirds of the
time during prayer.

Failing to recite Al-Fatiha in every rak'ah, or failing to assume
any of the prayer positions (whether one is leading as Imam, or
following an Imam).

ACTS TO AVOID IN PRAYER
Prayer is a condition in which one is in contact with Allah. It
calls for the utmost degree of sincerity, dignity, concentration and
control of the body. Any acts which tend to disturb this condition
are considered undesirable. The following acts are undesirable and
should be avoided:
Fumbling with one's clothing or body.