Safiyyah said:

When the Messenger of Allah ﷺ was observing I'tikaf (in the mosque), I would come to him to visit him. I had a talk with him and then stood up. I then returned and he (the Prophet) also stood up to accompany me (to my house). Her dwelling place was in the house of Usamah b. Zaid. Two men from the Ansar (helpers) passed (by him at the moment). When they saw the Prophet ﷺ, they walked quickly. The Prophet ﷺ said: Be at ease, she is Safiyyah daughter of Huyayy. They said: Be glory to Allah, Messenger of Allah! He said: Satan runs in man like blood. I feared he might inspire something in your mind, or he said: evil (the narrator doubted).

حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ شَبُّويَةَ الْمَرْوَزِيُّ، حَدَّثَنِي عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ عَلِيِّ بْنِ حُسَيْنٍ، عَنْ صَفِيَّةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ ﷺ مُعْتَكِفًا فَأَتَيْتُهُ أَزُورُهُ لَيْلاً فَحَدَّثْتُهُ ثُمَّ قُمْتُ فَانْقَلَبْتُ فَقَامَ مَعِي لِيَقْلِبَنِي - وَكَانَ مَسْكَنُهَا فِي دَارِ أُسَامَةَ بْنِ زَيْدٍ - فَمَرَّ رَجُلاَنِ مِنَ الأَنْصَارِ فَلَمَّا رَأَيَا النَّبِيَّ ﷺ أَسْرَعَا فَقَالَ النَّبِيُّ ﷺ " عَلَى رِسْلِكُمَا إِنَّهَا صَفِيَّةُ بِنْتُ حُيَىٍّ " . قَالاَ سُبْحَانَ اللَّهِ يَا رَسُولَ اللَّهِ . قَالَ " إِنَّ الشَّيْطَانَ يَجْرِي مِنَ الإِنْسَانِ مَجْرَى الدَّمِ فَخَشِيتُ أَنْ يَقْذِفَ فِي قُلُوبِكُمَا شَيْئًا " . أَوْ قَالَ " شَرًّا " .