Is it permissible to lie to one's parents in order to continue seeking knowledge that they forbid, and what should be done if they discover the matter: should their wish be obeyed or should one continue seeking knowledge?

Seeking sacred knowledge is divided into two categories: fard 'ayn (individual obligation) and fard kifayah (communal obligation). Fard 'ayn is what a Muslim needs to correct their belief (aqidah), worship (ibadah), and transactions (mu'amalat). For this, the permission of the parents is not required. As for the second category, fard kifayah, it involves knowing all branches of knowledge and the details of various issues. This requires the permission of the parents if neglecting them would cause them harm.

Regarding lying, the general rule is that it is forbidden, except in specific cases. Euphemisms (ma'arid) can be used for dissimulation, but one should be careful not to overuse them. The needs of the parents must be taken into consideration. If leaving to seek knowledge involves travel and absence, and they are in need of you, then their permission is necessary. However, if the pursuit of knowledge is within the same country and they are not in need of you, then permission is not required. Knowledge can be acquired by utilizing books, audio recordings, the internet, satellite channels, and by asking people of knowledge.