If you're looking for a PDF version of "Qawaid al-Arba'ah" in Urdu, I recommend searching online libraries, such as:
The author explains that the disbelievers ( Mushrikeen ) during the time of Prophet Muhammad (PBUH) did not deny that Allah is the Creator, the Provider, and the Controller of life and death. They affirmed Tawheed ar-Ruboobiyyah (Oneness of Lordship). Yet, the Prophet fought them and declared them disbelievers. Why? Because they directed specific acts of worship (like sacrifice, prayer, and seeking help) to other beings alongside Allah. Lesson: Tawheed al-Uloohiyyah (Oneness of Worship) is the decisive line between Islam and Kufr. qawaid al arba urdu pdf