Abu Hurayra reported that the Prophet, (ﷺ), said, "There are three supplications which are answered:

the supplication of the person who is wronged, the supplication of the traveller, and the supplication of a parent for his child.

حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ‏:‏ حَدَّثَنَا شَيْبَانُ، عَنْ يَحْيَى، عَنْ أَبِي جَعْفَرٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ‏:‏ ثَلاَثُ دَعَوَاتٍ مُسْتَجَابَاتٍ‏:‏ دَعْوَةُ الْمَظْلُومِ، وَدَعْوَةُ الْمُسَافِرِ، وَدَعْوَةُ الْوَالِدِ عَلَى وَلَدِهِ‏.‏