Sayyiduna Samurah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) used to command us to recite the Qur'an just as he had taught us to recite it, and he would say: "It has been revealed in three ahruf, so do not disagree about it, for it is blessed, all of it; recite it just as you have been taught to recite it."
Al-Tabarani and al-Bazzar recorded it; however, he (al-Bazzar) recorded the words "Do not turn away from it" in place of "Do not dispute about it". The chain of both is da'if (weak). A route of it has already passed whose narrators are the narrators of the Sahih, and that narration is abridged.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التفسير / 11580
Hadith Gradingمحدثین:إسنادہ ضعیف ولکن دیگر معتبر سند
Hadith Takhrij«اخرجه البزار فى المسند (2316) اخرجه الطبراني فى المعجم الكبير (7032) ، أخرجه المعجم الكبير للطبراني برقم: 7032، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 5935/3»