اللَّهُمَّ إِنِّي أَسْأَلُكَ خَيْرَهَا، وَأَعُوذُ بِكَ مِنْ شَرِّهَا
O Allah, I ask You for the good of it and seek refuge in You against its evil.
Allaahumma 'innee 'as'aluka khayrahaa, wa 'a'oothu bika min sharrihaa.
Abu Dawud 4/326, Ibn Majah 2/1228. See also Al-Albani, Sahih Ibn Mjjah 2/305