Rule 1...
Rule 1: If a boy, who has the means to make the journey, leaves for pilgrimage and attains puberty before assuming ihram at the appropriate Meqat, his pilgrimage is valid as Hajjatul Islam. However, if he attains adulthood after wearing the ihram and before the stay at Muzdalifah, he should complete the pilgrimage; it would be valid as Hajjatul Islam.
Rule 2: It is recommended for a discerning child to perform pilgrimage but, as is widely believed, it is conditional on the consent of his guardian. Rule 3: The consent of parents is not a prerequisite for the validity of a pilgrimage of an adult. However, if the journey to perform a recommended pilgrimage displeases either or both of them, for fear, for example, of the dangers arising from the journey, it is not permitted to embark on it.
2: Reason (Aql) There is no obligation on an insane person to perform a pilgrimage, even if their insanity is periodic. However, if they recover during the pilgrimage period, are of means and are able to perform the rituals thereof, it is obligatory for them to perform the pilgrimage, even if they remain insane during the other periods. However, should they know that bouts of insanity coincide with pilgrimage days, they should deputies a person as soon as they recover.
3 and 4: Freedom and Financial Ability There are a few rules that need consideration under this heading. A- Time There must be enough time for making the journey to Makkah and staying throughout the obligatory periods. In other words, it is not obligatory to perform a pilgrimage, even if you can afford it, if you do not have ample time for the journey, stay, and perform the obligatory rituals. This should also be the case, even if there was time, yet it entails enduring great difficulties.
In such circumstances, it is obligatory to set aside the funds for the journey in the ensuing year and do one’s best not to dispense with them until the following year. B- Physical Health and Strength If a person is unable to travel to the holy places due to ill health, or old age, or they are unable to stay there for the required periods because of extreme heat, it is not obligatory for them to set out for pilgrimage personally. However, they must send an agent to perform it for him.
C- No Obstruction The route must be open and safe, i.e., there must be no barrier to reaching the Meqat and no danger to the pilgrim’s life, property or honour. Otherwise, pilgrimage is not obligatory.