(17) بَابُ دَعْوَةِ الْوَالِدَيْنِ
Abu Hurayra reported that the Prophet, may Allah bless him and granthim peace, said, "Three supplications are answered without a doubt:
thesupplication of someone who is oppressed, the supplication of someone ona journey, and the supplication of parents for their children." (FR)
Reference (FR): Al-Adab Al-Mufrad 32 (FR)
In-book reference (FR): Book 1, Hadith 32 (FR)
English translation (FR): Book 1, Hadith 32 (FR)