(187) باب إِخْفَاءِ التَّشَهُّدِ
Narrated Abdullah ibn Mas'ud:
It pertains to the sunnah to utter the tashahhud quietly. (PT)
Reference (PT): Sunan Abi Dawud 986 (PT)
In-book reference (PT): Book 2, Hadith 597 (PT)
English translation (PT): Book 3, Hadith 981 (PT)