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
bayhaqi:13833 – Abū Saʿīd b. Abū ʿAmr > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > al-Rabīʿ > al-Shāfiʿī > Sufyān b. ʿUyaynah > ʿAmr b. Dīnār > Ibn Abū Mulaykah

[Machine] "I marry you based on what Allah has commanded, either to hold on to (the marriage) with goodness, or to release with kindness."  

البيهقي:١٣٨٣٣ – أَخْبَرَنَا أَبُو سَعِيدِ بْنُ أَبِي عَمْرٍو ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ أنبأ الرَّبِيعُ أنبأ الشَّافِعِيُّ أنبأ سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَمْرِو بْنِ دِينَارٍ عَنِ ابْنِ أَبِي مُلَيْكَةَ أَنَّ ابْنَ عُمَرَ كَانَ إِذَا أَنْكَحَ قَالَ

أُنْكِحُكَ عَلَى مَا أَمَرَ اللهُ بِهِ إِمْسَاكٌ بِمَعْرُوفٍ أَوْ تَسْرِيحٌ بِإِحْسَانٍ  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:13832 – Abū Ḥāzim al-ʿAbdawī al-Ḥāfiẓ > Abū al-Ḥasan Muḥammad b. Aḥmad b. Ḥamzah al-Harawī > Aḥmad b. Najdah > Saʿīd b. Manṣūr > Hushaym > Man > Abū Bakr b. Ḥafṣ > ʿUrwah b. al-Zubayr > Laḥiqt Ibn ʿUmar Fakhaṭabt Ilayh Āb.atah > Lī Ibn Abū ʿAbdullāh In Ibn Abū ʿAbdullāh Laʾahl

[Machine] "That we may praise our Lord and send blessings upon our Prophet, and we have married you according to what Allah has commanded, either by restraining oneself with kindness or by granting freedom with kindness."  

البيهقي:١٣٨٣٢ – أَخْبَرَنَا أَبُو حَازِمٍ الْعَبْدَوِيُّ الْحَافِظُ أنبأ أَبُو الْحَسَنِ مُحَمَّدُ بْنُ أَحْمَدَ بْنِ حَمْزَةَ الْهَرَوِيُّ أنبأ أَحْمَدُ بْنُ نَجْدَةَ ثنا سَعِيدُ بْنُ مَنْصُورٍ ثنا هُشَيْمٌ أَخْبَرَنِي مَنْ سَمِعَ أَبَا بَكْرِ بْنَ حَفْصٍ يُحَدِّثُ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ قَالَ لَحِقْتُ ابْنَ عُمَرَ فَخَطَبْتُ إِلَيْهِ ابْنَتَهُ فَقَالَ لِي ابْنَ أَبِي عَبْدِ اللهِ؟ إِنَّ ابْنَ أَبِي عَبْدِ اللهِ لَأَهْلٌ

أَنْ يَنْكِحَ نَحْمَدُ رَبَّنَا وَنُصَلِّي عَلَى نَبِيِّنَا وَقَدْ أَنْكَحْنَاكَ عَلَى مَا أَمَرَ اللهُ بِهِ إِمْسَاكٌ بِمَعْرُوفٍ أَوْ تَسْرِيحٌ بِإِحْسَانٍ