Arabic (Original)
حَدَّثَنَا عُمَرُ بْنُ سَعْدٍ عَنْ سُفْيَانَ عَنْ عَاصِمٍ عَنْ أَنَسٍ قَالَ قَنَتَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ شَهْرًا.
English Translation
Umar ibn Sa'd told us, from Sufyan, from Asim, from Anas, who said: The Messenger of Allah, peace and blessings be upon him, invoked curses for a month.