حَدَّثَنَا أَبُو بَكْرٍ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ بَكْرٍ السَّهْمِيُّ، عَنْ هِشَامٍ الدَّسْتَوَائِيِّ، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، عَنْ أَبِي جَعْفَرٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏"‏ ثَلاَثُ دَعَوَاتٍ يُسْتَجَابُ لَهُنَّ لاَ شَكَّ فِيهِنَّ دَعْوَةُ الْمَظْلُومِ وَدَعْوَةُ الْمُسَافِرِ وَدَعْوَةُ الْوَالِدِ لِوَلَدِهِ ‏"‏ ‏.‏

It was narrated that Abu Hurairah that : the Messenger of Allah (saas) said: "There are three supplications that will undoubtedly be answered: the supplication of one who has been wronged; the supplication of the traveler; and the supplication of a father for his child." Translation Not Available

Book Ref: Sunan Ibn Majah Book 34 Hadith 3862
Web Ref:  Sunan Ibn Majah Vol 5 Book 34 Hadith 3862