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:1689Muḥammad b. Yazīd > Ismāʿīl b. Muslim > al-Zuhrī > ʿUbaydullāh b. ʿAbdullāh > Ibn ʿAbbās

[Machine] Shall I tell you a hadith that I heard from the Messenger of Allah ﷺ ? They said, "Yes." He said, "So I bear witness that I heard the Messenger of Allah ﷺ say, 'Whoever prays a prayer and has doubt about its deficiency, let him pray until he has doubt about its surplus.'"  

أحمد:١٦٨٩حَدَّثَنَا مُحَمَّدُ بْنُ يَزِيدَ عَنْ إِسْمَاعِيلَ بْنِ مُسْلِمٍ عَنِ الزُّهْرِيِّ عَنْ عُبَيْدِ اللهِ بْنِ عَبْدِ اللهِ عَنِ ابْنِ عَبَّاسٍ أَنَّهُ كَانَ يُذَاكِرُ عُمَرَ شَأْنَ الصَّلاةِ فَانْتَهَى إِلَيْهِمْ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ فَقَالَ

أَلا أُحَدِّثُكُمْ بِحَدِيثٍ سَمِعْتُهُ مِنْ رَسُولِ اللهِ ﷺ؟ قَالُوا بَلَى قَالَ فَأَشْهَدُ أَنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ صَلَّى صَلاةً يَشُكُّ فِي النُّقْصَانِ فَلْيُصَلِّ حَتَّى يَشُكَّ فِي الزِّيَادَةِ