Protect yourselves against Fire even if with half a date. But if you fail to find it (then protect yourselves against Fire) with the help of a pleasant word). (Using translation from Muslim 1016d)
ذَكَرَ النَّبِيُّ ﷺ النَّارَ فَأَشَاحَ بِوَجْهِهِ فَتَعَوَّذَ مِنْهَا ثَلَاثَ مَرَّاتٍ ثُمَّ قَالَ رَسُولُ اللهِ ﷺ «اتَّقُوا النَّارَ وَلَوْ بِشِقِّ تَمْرَةٍ فَإِنْ لَمْ تَجِدُوا فَبِكَلِمَةٍ طَيِّبَةٍ»