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.
ahmad:3152Muḥammad b. Jaʿfar > Shuʿbah > Abū Isḥāq > a man from Banī Tamīm > Saʾalt Ibn ʿAbbās

[Machine] From the saying of the man with his finger, this is what it means in prayer. He said, "That is sincerity." Ibn Abbas said, "The Messenger of Allah ﷺ commanded us to use the toothstick until we thought that it would be revealed in it. And I saw the Messenger of Allah ﷺ prostrate until the whiteness of his armpits could be seen."  

أحمد:٣١٥٢حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ قَالَ سَمِعْتُ أَبَا إِسْحَاقَ يُحَدِّثُ أَنَّهُ سَمِعَ رَجُلًا مِنْ بَنِي تَمِيمٍ قَالَ سَأَلْتُ ابْنَ عَبَّاسٍ

عَنْ قَوْلِ الرَّجُلِ بِإِصْبَعِهِ هَكَذَا يَعْنِي فِي الصَّلَاةِ قَالَ ذَاكَ الْإِخْلَاصُ وَقَالَ ابْنُ عَبَّاسٍ لَقَدْ أَمَرَنَا رَسُولُ اللهِ ﷺ بِالسِّوَاكِ حَتَّى ظَنَنَّا أَنَّهُ سَيُنْزَلُ عَلَيْهِ فِيهِ وَلَقَدْ رَأَيْتُ رَسُولَ اللهِ ﷺ يَسْجُدُ حَتَّى يُرَى بَيَاضُ إِبْطَيْهِ