The Prophet ﷺ said, "Three supplications are answered without doubt: the supplication of a parent, the supplication of a traveler, and the supplication of one who has been wronged."
حدثنا مسلم بن إبراهيم حدثنا هشام الدستوائي عن يحيى عن أبي جعفر
أن النبي ﷺ قال ثلاث دعوات مستجابات لا شك فيهن دعوة الوالد ودعوة المسافر ودعوة المظلوم
224 Takhrij: [Hasan] Reported by Tirmidhi, chapter on the parents' supplication, Book of Righteousness and Kinship Ties, no. 1905, and Ibn Majah, no. 3862, from the hadith of Hisham Dastawai through this chain. Tirmidhi said, hasan, and Ibn Hibban graded it sahih, no. 2406. The hadith has supporting narrations in Hakim, 1/417, 418, and Haythami in Majma al-Zawaid, 10/