What is the ruling on someone who believes that Sawm (Fast) of the six days of Shawwal must be observed starting from the second day of the month, especially for the elderly?
One can observe Sawm of the six days of Shawwal throughout the entire month; whether at its beginning, middle, or end and whether consecutively or separately. This is based on the following Hadith in which the Prophet (peace be upon him) said:
Anyone who observes Sawm of Ramadan and then follows it with six days (of Sawm ) in Shawwal...
The words of the Prophet (peace be upon him) are general, denoting the permissibility of observing Sawm on any day of the month. And Allah knows best. (Part No. 9; Page No. 304) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.