Sahih Bukhari, Hadith: Q3173-2, (11) Chapter. If non-Muslims (in war) say: “Saba’na” and could not say “Aslamna” (i.e., we have embraced Islam), (their claim is accepted).

صحيح البخاري

Sahih Bukhari

کتاب الجزیہ والموادعہ

The Book of Al-Jizya and The Stoppage of War

باب إذا قالوا صبأنا ولم يحسنوا أسلمنا:

(11) Chapter. If non-Muslims (in war) say:“Saba’na”and could not say“Aslamna”(i.e., we have embraced Islam), (their claim is accepted).