Jami At Tirmidhi
3265
Sahih+3

Narrated At-Tufail bin Ubayy bin Ka'b:from his father, from the Prophet (ﷺ) (regarding this Ayah): 'And made them stick to the word of Taqwa (48:26).' He (ﷺ) said (the word is): "La Ilaha Illallah

SahihAhmad Muhammad Shakir
SahihAl-Albani