صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب الأذان والإقامةChapters on Adhan and Iqamah
(87) بَابُ الْأَمْرِ بِالْخُشُوعِ فِي الصَّلَاةِ،Chapter 87: Command to have humility in prayer
Hadith Q474
إِذِ الْمُصَلِّي يُنَاجِي رَبَّهُ، وَالْمُنَاجِي رَبَّهُ يَجِبُ عَلَيْهِ أَنْ يُفَرِّغَ قَلْبَهُ لِمُنَاجَاةِ خَالِقِهِ- عَزَّ وَجَلَّ- وَلَا يَشْغَلَ قَلْبَهُ التَّعَلُّقُ بِشَيْءٍ مِنْ أُمُورِ الدُّنْيَا يَشْغَلُهُ عَنْ مُنَاجَاةِ خَالِقِهِ.
Because the one who prays is whispering to his Lord, and it is obligatory for the one who whispers with his Lord to keep his heart free for whispering to his Creator and Master, and not to occupy his heart with any worldly matters that would distract him from whispering with his Lord.
