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
ahmad:20257 – ʿAffān > Hammām > Bishr b. Ḥarb > Samurah b. Jundub

[Machine] I consider that one who forgets a prayer should perform it once they remember, even if it is after the time for it has passed.  

أحمد:٢٠٢٥٧ – حَدَّثَنَا عَفَّانُ حَدَّثَنَا هَمَّامٌ أَخْبَرَنَا بِشْرُ بْنُ حَرْبٍ عَنْ سَمُرَةَ بْنِ جُنْدُبٍ قَالَ

أَحْسَبُهُ مَرْفُوعًا مَنْ نَسِيَ صَلَاةً فَلْيُصَلِّهَا حِينَ يَذْكُرُهَا وَمِنَ الْغَدِ لِلْوَقْتِ  

See similar narrations below:

Collected by Ṭabarānī, Suyūṭī

أَبُو مِجْلَزٍ لَاحِقُ بْنُ حُمَيْدٍ عَنْ سَمُرَةَ بْنِ جُنْدُبٍ

tabarani:6978 – Muʿādh b. al-Muthanná > Abū al-Walīd > Ḥammād b. Salamah > ʿĀṣim al-Aḥwal > Abū Mijlaz > Samurah

[Machine] On the authority of the Prophet ﷺ , he said, "Whoever forgets a prayer, let them pray it as soon as they remember it, even if it is the next day, within its prescribed time."  

الطبراني:٦٩٧٨ – حَدَّثَنَا مُعَاذُ بْنُ الْمُثَنَّى ثنا أَبُو الْوَلِيدِ ثنا حَمَّادُ بْنُ سَلَمَةَ عَنْ عَاصِمٍ الْأَحْوَلِ عَنْ أَبِي مِجْلَزٍ عَنْ سَمُرَةَ

عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ نَسِيَ صَلَاةً فَلْيُصَلِّهَا إِذَا ذَكَرَهَا مِنَ الْغَدِ لِلْوَقْتِ»