Mentioning the characteristics of the noble month of Ramadan: First: That Allah made fasting in Ramadan obligatory.

The Shaykh : This noble month has characteristics. The first characteristic is that Allah the Exalted made its fasting obligatory. What is the evidence? Brother, what is the evidence for the obligation of fasting in Ramadan?
First: May Allah reward you. And the Prophet (peace and blessings be upon him) placed it in the highest ranks of the Islamic religion, meaning among the highest of them. This is in the saying of the Prophet (peace and blessings be upon him and his family): Complete it, O man. Where are you going? Where are you going? Get up, get up, complete it.
The student: ... .

The Shaykh : What?
The student: ... .

The Shaykh : Yes, that is fine, you are excused, but look, be present in heart, do not look to the right or left. In the saying of the Prophet (peace and blessings be upon him), who will complete it? Yes.
The student: ... .

The Shaykh : Yes.
The student: ... .

The Shaykh : The Prophet (peace and blessings be upon him) said: If a building loses one of its columns, what happens? Either it collapses or it becomes severely unstable. This is one. . For this reason, the scholars said: "Whoever denies that fasting in Ramadan is obligatory is a disbeliever", meaning if someone says fasting in Ramadan is not obligatory, but I will fast with the people and fast it as voluntary, we tell him, what is he? A disbeliever. If he fasts, it does not benefit him. And if he acknowledges its obligation but leaves it off out of negligence, he does not become a disbeliever, but he is in great danger. That is fine.