The necessity of saying the Takbir, i.e., Allahu Akbar (Allah is the Most Great) and the commencement of As-Salat (the prayer)
باب إِيجَابِ التَّكْبِيرِ وَافْتِتَاحِ الصَّلاَةِ
2112
Sahih Bukhari
Sahih
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الشَّيْبَانِيِّ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ نَهَى النَّبِيُّ صلى الله عليه وسلم عَنِ الْمُحَاقَلَةِ وَالْمُزَابَنَةِ.
Narrated Ibn `Abbas:
The Prophet (ﷺ) forbade Muzabana and Muhaqala.
Reference: Sahih al-Bukhari 2187 In-book : Book 34, Hadith 134 USC-MSA web (English) : Vol. 3, Book 34, Hadith 392 (deprecated)
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