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taslim. After a short while, Iqamah used to be pronounced
for the Isha prayer and he would perform two rak'ahs in
prayer [shortening Isha] and perform taslim."

Sahih Muslim, Vol. I, p. 344, no. 1521. Ibn Abass
reported, "1 observed, with the Messenger of Allah jg, eight
rak'ahs in prayer in combination, and seven rak'ahs in prayer
in combination I think that the Holy Prophet had
delayed the Noon prayer and hastened the Afternoon prayer,
and he delayed the Sunset prayer and hastened the Isha
prayer."

257. Prophet Muhammad did not offer any extra prayers when
combining the prayers until the middle of the night, when he
offered the Tahajjud prayer.

258. Sahih Muslim, Vol. I, p. 335, no. 1454.

259. Sahih Muslim, Vol. I, p. 298, no. 1263.