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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tirmidhi:2225 – Yaḥyá b. Mūsá > ʿAbd al-Razzāq > Maʿmar > al-Zuhrī > Sālim b. ʿAbdullāh b. ʿUmar from his father > Qīl Liʿumar b. al-Khaṭṭāb Law Āstakhlaft

"It was said to 'Umar bin Al-Khattab: 'Perhaps you should endorse your successor.' He said: 'If I appoint a successor, then indeed Abu Bakr appointed a successor. And if I do not appoint a successor, the Messenger of Allah ﷺ did not appoint a successor."'  

الترمذي:٢٢٢٥ – حَدَّثَنَا يَحْيَى بْنُ مُوسَى حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنِ الزُّهْرِيِّ عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ بْنِ عُمَرَ عَنْ أَبِيهِ قَالَ قِيلَ لِعُمَرَ بْنِ الْخَطَّابِ لَوِ اسْتَخْلَفْتَ قَالَ

إِنْ أَسْتَخْلِفْ فَقَدِ اسْتَخْلَفَ أَبُو بَكْرٍ وَإِنْ لَمْ أَسْتَخْلِفْ لَمْ يَسْتَخْلِفْ رَسُولُ اللَّهِ ﷺ  

قَالَ أَبُو عِيسَى وَفِي الْحَدِيثِ قِصَّةٌ طَوِيلَةٌ وَهَذَا حَدِيثٌ صَحِيحٌ قَدْ رُوِيَ مِنْ غَيْرِ وَجْهٍ عَنِ ابْنِ عُمَرَ