صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب الأذان والإقامةChapters on Adhan and Iqamah
(84) بَابُ إِبَاحَةِ الدُّعَاءِ بَعْدَ التَّكْبِيرِ وَقَبْلَ الْقِرَاءَةِ بِغَيْرِ مَا ذَكَرْنَا فِي خَبَرِ عَلِيِّ بْنِ أَبِي طَالِبٍ،Chapter 84: Permissibility of supplicating after the takbir and before recitation with other than what was narrated from Ali ibn Abi Talib
Hadith Q465
وَالدَّلِيلِ عَلَى أَنَّ هَذَا الِاخْتِلَافَ فِي الِافْتِتَاحِ مِنْ جِهَةِ اخْتِلَافِ الْمُبَاحِ، جَائِزٌ لِلْمُصَلِّي أَنْ يَفْتَتِحَ بِكُلِّ مَا ثَبَتَ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ افْتَتَحَ الصَّلَاةَ بِهِ بَعْدَ التَّكْبِيرِ مِنْ حَمْدٍ وَثَنَاءٍ عَلَى اللَّهِ- عَزَّ وَجَلَّ- وَدُعَاءٍ مِمَّا هُوَ فِي الْقُرْآنِ وَمِمَّا لَيْسَ فِي الْقُرْآنِ مِنَ الدُّعَاءِ.
The evidence for this is that (supplication) in the opening is among the differences that are permissible, and it is allowed for the one praying to begin the prayer with (any supplication) that is proven from the Prophet ﷺ that he used to begin the prayer with after the takbeer, whether it is with the praise and glorification of Allah Almighty, or those supplications that are mentioned in the Qur'an, or those supplications that are not mentioned in the Qur'an.
