It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "There are three supplications whose acceptance is beyond doubt: the supplication of the oppressed, the supplication of a father against his child, and the supplication of the traveller."
No one narrated this hadith from Yahya bin Abi Kathir (may Allah have mercy on him), from Abu Salamah (may Allah have mercy on him), except Imam al-Awza'i (may Allah have mercy on him), and Abu al-Mughirah (may Allah have mercy on him) is alone in it; whereas the general narrators report it from Yahya bin Abi Kathir (may Allah have mercy on him), from Abu Ja'far (may Allah have mercy on him).
Hadith Referenceالمعجم الأوسط / باب الألف / 24
Hadith Takhrij«أخرجه ابن حبان فى «صحيحه» برقم: 2699، وأبو داود فى «سننه» برقم: 1536، والترمذي فى «جامعه» برقم: 1905، 3448 (م)، 3448، وابن ماجه فى «سننه» برقم: 3862، وأحمد فى «مسنده» برقم: 7626، 8700، 9737، 10337، 10859، 10922، والطيالسي فى «مسنده» برقم: 2639، وعبد بن حميد فى «مسنده» برقم: 1421، وابن أبي شيبة فى «مصنفه» برقم: 30449»