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.
darimi:116ʿAmr b. ʿAwn Anbʾanā Hushaym > al-ʿAwwām > al-Musayyab b. Rāfiʿ

[Machine] Whenever a matter was brought to them in which there was no evidence from the Messenger of Allah ﷺ, they would gather and unanimously agree based on what they had seen. The truth is in what they have observed.  

الدارمي:١١٦أَخْبَرَنَا عَمْرُو بْنُ عَوْنٍ أَنبأَنَا هُشَيْمٌ عَنِ الْعَوَّامِ عَنِ الْمُسَيَّبِ بْنِ رَافِعٍ قَالَ

كَانُوا إِذَا نَزَلَتْ بِهِمْ قَضِيَّةٌ لَيْسَ فِيهَا مِنْ رَسُولِ اللَّهِ ﷺ أَثَرٌ اجْتَمَعُوا لَهَا وَأَجْمَعُوا فَالْحَقُّ فِيمَا رَأَوْا فَالْحَقُّ فِيمَا رَأَوْا