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.
muslim:2279cAbū Ghassān al-Mismaʿī > Muʿādh / Ibn Hishām from my father > Qatādah > Anas b. Mālik > Nabī Allāh ﷺ And ʾAṣḥābah Bi-al-Zzawrāʾ

Abu Hamza (the kunya of Hadrat Anas b. Malik), how many people were they? He said: They were about three hundred.  

مسلم:٢٢٧٩cحَدَّثَنِي أَبُو غَسَّانَ الْمِسْمَعِيُّ حَدَّثَنَا مُعَاذٌ يَعْنِي ابْنَ هِشَامٍ حَدَّثَنِي أَبِي عَنْ قَتَادَةَ حَدَّثَنَا أَنَسُ بْنُ مَالِكٍ

أَنَّ نَبِيَّ اللَّهِ ﷺ وَأَصْحَابَهُ بِالزَّوْرَاءِ قَالَ وَالزَّوْرَاءُ بِالْمَدِينَةِ عِنْدَ السُّوقِ وَالْمَسْجِدِ فِيمَا ثَمَّهْ دَعَا بِقَدَحٍ فِيهِ مَاءٌ فَوَضَعَ كَفَّهُ فِيهِ فَجَعَلَ يَنْبُعُ مِنْ بَيْنِ أَصَابِعِهِ فَتَوَضَّأَ جَمِيعُ أَصْحَابِهِ قَالَ قُلْتُ كَمْ كَانُوا يَا أَبَا حَمْزَةَ قَالَ كَانُوا زُهَاءَ الثَّلاَثِمِائَةِ