(37) باب أَمْرِ الأَئِمَّةِ بِتَخْفِيفِ الصَّلاَةِ فِي تَمَامٍ
This hadith like one narrated by Hashalm has been narrated from Isma'il with the same chain of transmitters.
Reference: Sahih Muslim 466 b
In-book reference: Book 4, Hadith 207
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 941