Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tirmidhi:3751 – Rajāʾ b. Muḥammad al-ʿUdhrī Baṣrī > Jaʿfar b. ʿAwn > Ismāʿīl Ibn Abū Khālid > Qays b. Abū Ḥāzim > Saʿd

that the Messenger of Allah ﷺ said: "O Allah, respond to Sa'd when he supplicates to You."  

الترمذي:٣٧٥١ – حَدَّثَنَا رَجَاءُ بْنُ مُحَمَّدٍ الْعُذْرِيُّ بَصْرِيٌّ قَالَ حَدَّثَنَا جَعْفَرُ بْنُ عَوْنٍ عَنْ إِسْمَاعِيلَ ابْنِ أَبِي خَالِدٍ عَنْ قَيْسِ بْنِ أَبِي حَازِمٍ عَنْ سَعْدٍ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ اللَّهُمَّ اسْتَجِبْ لِسَعْدٍ إِذَا دَعَاكَ وَقَدْ رُوِيَ هَذَا الْحَدِيثُ عَنْ إِسْمَاعِيلَ عَنْ قَيْسٍ أَنَّ النَّبِيَّ ﷺ قَالَ اللَّهُمَّ اسْتَجِبْ لِسَعْدٍ إِذَا دَعَاكَ وَهَذَا أَصَحُّ