"إِنَّ لِلَّهِ مَا أَخَذَ وَلَهُ مَا أَعْطَى . وَكُلُّ شَيْءٍ عِنْدَهُ بِأَجَلٍ مُسَمًّى ... فَلْتَصْبِرْ وَلْتَحْتَسِبْ " وَإِنْ قَالَ : "أَعْظَمَ اللَّهُ أَجْرَكَ ، وَأَحْسَنَ عَزَاءَكَ وَغَفَرَ لِمَيِّتِكَ" فَحَسَنٌ
Inna lillāhi mā akhadh, wa lahu mā a`tā, wa kullu shay'in `indahu bi ajalin musammā . . . faltaṣbir wa ‘l-taḥtasib . [Also good to say:] A`ẓamallāhu ajrak, wa 'aḥsana `azā'ak, wa ghafara limayyitik.
Surely, Allah takes what is His, and what He gives is His, and to all things He has appointed a time... so have patience and be rewarded.1 May Allah magnify your reward, and make perfect your bereavement, and forgive your departed.2
1 Al-Bukhari 2/80, Muslim 2/636. 2An-Nawawi, Kitabul-'Athkar, p. 126.