The Messenger of Allah ﷺ said, "O Allah, I declare it a grave sin to violate the rights of the two weak ones, the orphan and the woman."
قال رسول الله ﷺ: اللهم إني أحرج حق الضعيفين: حق اليتيم وحق المرأة.
Narrated by Nasai in al-Kubra (9105), from Ahmad bin Bakkar, who said, Muhammad, that is, Ibn Salama, narrated to us, from Ibn Ajlan, from Maqburi, from his father, from Abu Shurayh, who said, then he mentioned the hadith.Its isnad is hasan because of Muhammad bin Ajlan, for his hadith are hasan, and Nawawi also graded it hasan in Riyad Saliheen. This should not be faulted on account of the hadith before it, because Muhammad bin Salama is Muradi Misri, the narrator from Muhammad bin Ajlan, who is among the trustworthy and reliable narrators, and an addition from a trustworthy narrator is accepted by the majority. So perhaps Ibn Ajlan heard the hadith from his teacher Saeed bin Abu Saeed Maqburi once from Abu Hurairah, and once from Abu Shurayh Khuzai.