"I entered upon the Prophet when he was having Sahur. He sadi: 'It is a blessing that Allah has given to you, so do not neglect it." (Using translation from Nasāʾī 2162)  

عَنْ رَجُلٍ مِنْ أَصْحَابِ النَّبِيِّ ﷺ قَالَ دَخَلْتُ عَلَى النَّبِيِّ ﷺ وَهُوَ يَتَسَحَّرُ فَقَالَ «إِنَّهَا بَرَكَةٌ أَعْطَاكُمُ اللهُ إِيَّاهَا فَلَا تَدَعُوهُ»