Surah At-Talaq (The Divorce), Verse 2

فَاِذَا بَلَغْنَ اَجَلَهُنَّ فَاَمْسِكُوْهُنَّ بِمَعْرُوْفٍ اَوْ فَارِقُوْهُنَّ بِمَعْرُوْفٍ وَّاَشْهِدُوْا ذَوَیْ عَدْلٍ مِّنْكُمْ وَاَقِیْمُوا الشَّهَادَةَ لِلّٰهِ ذٰلِكُمْ یُوْعَظُ بِهٖ مَنْ كَانَ یُؤْمِنُ بِاللّٰهِ وَالْیَوْمِ الْاٰخِرِ وَمَنْ یَّتَّقِ اللّٰهَ یَجْعَلْ لَّهٗ مَخْرَجًا ۟

Fa izaa balaghna ajalahunna fa amsikoohunna bima'roofin aw faariqoohunna bima'roofinw wa ashhidoo zawai 'adlim minkum wa aqeemush shahaadata lillaah; zaalikum yoo'azu bihee man kaana yu'minu billaahi wal yawmil aakhir; wa many yattaqil laaha yaj'al lahoo makhrajaa

“Thus when they fulfil their term appointed, either take them back on equitable terms or part with them on equitable terms; and take for witness two persons from among you, endued with justice, and establish the evidence (as) before Allah. Such is the admonition given to him who believes in Allah and the Last Day. And for those who fear Allah, He (ever) prepares a way out,”

Quran 65:2 (Yusuf Ali Translation)