Is the disposal of Sidr water, which was used to undo a [magic] knot, in front of the house considered witchcraft? And how can it be undone, especially since this coincides with the lack of marriage proposals for the daughters of the house?

What sorcerers do to protect girls is forbidden. The dissolution of magic is permissible using Sidr (Lote Tree leaves) by placing seven crushed green Sidr leaves in a container with enough water for bathing. Then, the following should be recited into the water: Ayatul-Kursi, Surah (definition) Al-Kafiroon, Al-Ikhlas (definition), Al-Falaq, An-Nas, and the verses of magic from Surah Al-A'raf (117-119), Surah Yunus (79-82), and Surah Taha (69). Then, one should drink from it three times and bathe with the remaining water. This should be repeated until the ailment is removed. If the one performing Ruqyah (definition) uses the lawful Islamic Ruqyah, there is no harm in the ruqyah water. A Muslim must fortify themselves with the prescribed remembrances (adhkar) and lawful Ruqyah, and can seek assistance from a trustworthy raqi (one who performs Ruqyah). It is recommended to rely on Allah, consistently perform acts of obedience and remembrances, engage in lawful Ruqyah, and seek help through prayer and supplication.