Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
muslim:583bIbn Abū ʿUmar > Sufyān b. ʿUyaynah > ʿAmr b. Dīnār > Abū Maʿbad a freed slave of Ibn ʿAbbās > Samiʿah Yukhbir > Ibn ʿAbbās

We knew the finishing of the prayer of the Messenger of Allah ﷺ through takbir. 'Amr (b. Dinar) said: I made a mention of it to Abu Mas'ud. hue he rejected it and said: I never narrated it to you. 'Amr said: He did narrate it before this.  

مسلم:٥٨٣bحَدَّثَنَا ابْنُ أَبِي عُمَرَ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَمْرِو بْنِ دِينَارٍ عَنْ أَبِي مَعْبَدٍ مَوْلَى ابْنِ عَبَّاسٍ أَنَّهُ سَمِعَهُ يُخْبِرُ عَنِ ابْنِ عَبَّاسٍ قَالَ

مَا كُنَّا نَعْرِفُ انْقِضَاءَ صَلاَةِ رَسُولِ اللَّهِ ﷺ إِلاَّ بِالتَّكْبِيرِ قَالَ عَمْرٌو فَذَكَرْتُ ذَلِكَ لأَبِي مَعْبَدٍ فَأَنْكَرَهُ وَقَالَ لَمْ أُحَدِّثْكَ بِهَذَا قَالَ عَمْرٌو وَقَدْ أَخْبَرَنِيهِ قَبْلَ ذَلِكَ