Thauban, the freed slave of the Messenger of Allah (ﷺ) reported Allah's Messenger (ﷺ) as saying: He who offered prayer for the dead, for him is the reward of one 'qirat', and he who attended its burial, he would have two 'qirats' as his reward. And 'qirat' is equivalent to Uhud.
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This hadith has been narrated by Qatada with the same chain of transmitters. And in the hadith transmitted by Sa'id and Hisham, (the words are):" The Apostle of Allah (ﷺ) was asked about 'qirat', and he said: It is equivalent to Uhud."
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