Oneness, Uniqueness of Allah (Tawheed)
حَدَّثَنَا قَبِيصَةُ، حَدَّثَنَا سُفْيَانُ، عَنْ مَنْصُورٍ، عَنْ أُمِّهِ، عَنْ عَائِشَةَ، قَالَتْ كَانَ النَّبِيُّ صلى الله عليه وسلم يَقْرَأُ الْقُرْآنَ وَرَأْسُهُ فِي حَجْرِي وَأَنَا حَائِضٌ.Narrated `Aisha:The Prophet (ﷺ) used to recite the Qur'an with his head in my lap while I used to be in my periods (having menses)
From Sahih al-Bukhari, whose reports the scholars accept as authentic.