To observe Saum (fast) continuously

لِقَوْلِهِ تَعَالَى: {ثُمَّ أَتِمُّوا الصِّيَامَ إِلَى اللَّيْلِ} وَنَهَى النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْهُ رَحْمَةً لَهُمْ وَإِبْقَاءً عَلَيْهِمْ، وَمَا يُكْرَهُ مِنَ التَّعَمُّقِ.And whoever says that there is no Saum (fast) at night according to the Statement of Allah عز وجل: “Then complete your fast till the nightfall...” (V.2:187). And the Prophet ﷺ forbade it (i.e., Al-Wisal) with mercy to them (Muslims) and to keep them healthy. And what is hated as regards excessive practices of worshipping.