حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا يَحْيَى، عَنِ ابْنِ عَجْلاَنَ، حَدَّثَنَا الْقَعْقَاعُ بْنُ حَكِيمٍ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ‏"‏ رَحِمَ اللَّهُ رَجُلاً قَامَ مِنَ اللَّيْلِ فَصَلَّى وَأَيْقَظَ امْرَأَتَهُ فَصَلَّتْ فَإِنْ أَبَتْ نَضَحَ فِي وَجْهِهَا الْمَاءَ رَحِمَ اللَّهُ امْرَأَةً قَامَتْ مِنَ اللَّيْلِ فَصَلَّتْ وَأَيْقَظَتْ زَوْجَهَا فَإِنْ أَبَى نَضَحَتْ فِي وَجْهِهِ الْمَاءَ ‏"‏ ‏.‏

Narrated AbuHurayrah: The Prophet (PBUH) said: May Allah show mercy to a man who gets up during the night and prays, who wakens his wife and she prays; if she refuses, he sprinkles water on her face. May Allah show mercy to a woman who gets up during the night and prays, who wakens her husband and he prays; if he refuses she sprinkles water on his face. Translation Not Available

Book Ref: Sunan Abi Dawud Book 8 Hadith 1450
Web Ref:  Sunan Abi Dawud Book 8 Hadith 1445