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.
abudawud:675Musaddad > Yazīd b. Zurayʿ > Khālid > Abū Maʿshar > Ibrāhīm > ʿAlqamah > ʿAbdullāh

“Do not be irregular, so have your hearts irregular, and beware of tumult such as found in market”.  

أبو داود:٦٧٥حَدَّثَنَا مُسَدَّدٌ حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ حَدَّثَنَا خَالِدٌ عَنْ أَبِي مَعْشَرٍ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللَّهِ

عَنِ النَّبِيِّ ﷺ مِثْلَهُ وَزَادَ وَلاَ تَخْتَلِفُوا فَتَخْتَلِفَ قُلُوبُكُمْ وَإِيَّاكُمْ وَهَيْشَاتِ الأَسْوَاقِ