Hadith 7:90
Busaira, who was one of the women emigrants, told of God’s messenger saying to them, “Apply yourselves to glorifying God, saying there is no god but He, and declaring His holiness; and count them on your fingers, for they [i.e. the fingers] will be questioned and asked to speak; and do not be negligent and so be deprived of mercy.” Tirmidhi and Abu Dawud transmitted it.
وَعَنْ يُسَيْرَةَ رَضِيَ اللَّهُ عَنْهَا وَكَانَتْ مِنَ الْمُهَاجِرَاتِ قَالَتْ: قَالَ لَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «عَلَيْكُنَّ بِالتَّسْبِيحِ وَالتَّهْلِيلِ وَالتَّقْدِيسِ واعقِدْنَ بالأناملِ فإِنهنَّ مسؤولات مُسْتَنْطَقَاتٌ وَلَا تَغْفُلْنَ فَتَنْسَيْنَ الرَّحْمَةَ» . رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُد
Original Reference: Mishkat al-Masabih 2316