It was narrated from Abu Hurairah:that the Messenger of Allah said: "If there comes to you one with whose character and religious commitment you are pleased, then marry (your daughter or female relative under your care) to him, for if you do not do that there will be Fitnah in the land and widespread corruption.'"
حَدَّثَنَا مُحَمَّدُ بْنُ سَابُورَ الرَّقِّيُّ، حَدَّثَنَا عَبْدُ الْحَمِيدِ بْنُ سُلَيْمَانَ الأَنْصَارِيُّ، أَخُو فُلَيْحٍ عَنْ مُحَمَّدِ بْنِ عَجْلاَنَ، عَنِ ابْنِ وَثِيمَةَ الْمِصْرِيِّ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " إِذَا أَتَاكُمْ مَنْ تَرْضَوْنَ خُلُقَهُ وَدِينَهُ فَزَوِّجُوهُ إِلاَّ تَفْعَلُوا تَكُنْ فِتْنَةٌ فِي الأَرْضِ وَفَسَادٌ عَرِيضٌ " .
IbnMaja
The Chapters on Marriage • Hadith 1967