وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «ثَلَاثُ دَعَوَاتٍ مُسْتَجَابَاتٍ لَا شَكَّ فِيهِنَّ: دَعْوَةُ الْوَالِدِ وَدَعْوَةُ الْمُسَافِرِ وَدَعْوَةُ الْمَظْلُومِ»
that of a parent, that of a traveller, and that of one who has been wronged.
Mishkat al-Masabih 2152, Book 10, Supplications, Hadith 26. 1 min read