Narrated 'Aisha:
The day of Bu'ath was a day (i.e. battle) which Allah caused to take place just before the mission of His Apostle so that when Allah's Apostle came to Medina, they (the tribes) had divided (into...
O Allah, I seek refuge in You lest I misguide others, or I am misguided by others, lest I cause others to err or I am caused to err, lest I abuse others or be abused, and lest I behave foolishly or meet with the...
-> Read More Info: Abu Dawud, Ibn Majah, An-Nasa'i, At-Tirmidhi. See also Al-Albani, Sahih At-Tirmidhi 3/152 and Sahih Ibn Majah 2/336.