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
bayhaqi:20686 – Abū Ḥāzim al-Ḥāfiẓ > Abū al-Faḍl b. Khimayrawayh > Aḥmad b. Najdah > Saʿīd b. Manṣūr > Hushaym > Yūnus > Ibn Sīrīn

[Machine] There was a permission to accept the testimony of a single witness if he was known along with the affirmation of the student in a minor matter.  

البيهقي:٢٠٦٨٦ – أَخْبَرَنَا أَبُو حَازِمٍ الْحَافِظُ أنبأ أَبُو الْفَضْلِ بْنُ خِمَيْرَوَيْهِ أنبأ أَحْمَدُ بْنُ نَجْدَةَ ثنا سَعِيدُ بْنُ مَنْصُورٍ ثنا هُشَيْمٌ أنبأ يُونُسُ عَنِ ابْنِ سِيرِينَ قَالَ

كَانَ شُرَيْحٌ يُجِيزُ شَهَادَةَ الشَّاهِدِ الْوَاحِدِ إِذَا عَرَفَهُ مَعَ يَمِينِ الطَّالِبِ فِي الشَّيْءِ الْيَسِيرِ