Hadith 168B2

وَسُئِلَ مَالِك ، عَنْ رَجُلٍ دَخَلَ مَعَ الْإِمَامِ فَنَسِيَ تَكْبِيرَةَ الْافْتِتَاحِ وَتَكْبِيرَةَ الرُّكُوعِ حَتَّى صَلَّى رَكْعَةً ، ثُمَّ ذَكَرَ أَنَّهُ لَمْ يَكُنْ كَبَّرَ تَكْبِيرَةَ الْافْتِتَاحِ ، وَلَا عِنْدَ الرُّكُوعِ ، وَكَبَّرَ فِي الرَّكْعَةِ الثَّانِيَةِ ، قَالَ : يَبْتَدِئُ صَلَاتَهُ أَحَبُّ إِلَيَّ وَلَوْ سَهَا مَعَ الْإِمَامِ عَنْ تَكْبِيرَةِ الْافْتِتَاحِ ، وَكَبَّرَ فِي الرُّكُوعِ الْأَوَّلِ رَأَيْتُ ذَلِكَ مُجْزِيًا عَنْهُ إِذَا نَوَى بِهَا تَكْبِيرَةَ الْافْتِتَاحِ .
Imam Malik, may Allah have mercy on him, was asked about a person who joined the prayer with the Imam and forgot the Takbir al-Tahrimah and the Takbir for bowing, until he completed one rak'ah, then remembered that he had not said the Takbir al-Tahrimah, nor the Takbir at the time of bowing, but said the Takbir in the second rak'ah. Imam Malik, may Allah have mercy on him, replied that it is better for him to repeat the prayer from the beginning. And as for the one who forgot to say the Takbir al-Tahrimah with the Imam but said the Takbir al-Tahrimah at the time of bowing, then this Takbir will suffice for the Takbir al-Tahrimah, provided that he intended with this Takbir the Takbir al-Tahrimah.
Hadith Reference موطا امام مالك رواية يحييٰ / كتاب الصلاة / 168B2
Hadith Takhrij «شركة الحروف نمبر: 156، فواد عبدالباقي نمبر: 3 - كِتَابُ الصَّلَاةِ-ح: 22»