1-I'tikaaf is to be in seclusion for the purpose of worship.
2-It is a kind of worship done only in the masjid (mosque).
3-Doing it in one of the three mosques earns more reward.
4-Its ruling is Sunnah not waajib.
5-But it becomes waajib(compulsory) if one vows to.
6-Al-'itikāf is done at any time of the day or the night of any month.
7-Full-day, half-day, an hour or less counts on the I'tikaaf.
8-Intention should be established for Alllaah just like other devotions.
9-Conditioning is also accepted but before the commencement.
10-An instance is to attend to a necessary service(s).
11-Mu'takif is a man doing I'tikaaf, Mu'takifah is the opposite sex.
12-Mu'takaf is the place of I'tikaaf, the masjid.
13-Mu'takif is not allowed to leave the mu'takaf or be outside the masjid.
14-He should not visit the sick or follow the corpse to the graveyard.
15-He should not have sexual intercourse with his wife or have a romantic play.
16-If he is out for his basic needs he should return immediately.
17-Travelling for Mu'takaf (masjid) is not allowed, that is only permitted for one of the 3 great mosques(Masjidul Haraam, Masjidun Nabawiyy and Masjidul Aqşa).
18-Don't abandon your obligatory act for I'tikaaf, this is a big error some fall into.
19-Attending to one's parent is obligatory, that should not be exchanged for I'tikaaf.
20-Fasting is not a condition for the I'tikaaf, the non-fasting Muslim can perform it.
21- It is recommended for the mu'takif to engage in all kinds of permissibke zikr.
22-I'tikaaf is recommended not waajib in the last 10 days of Ramadaan.
23-If one intends for Night I'tikaaf he should enter the mu'takaf before the sunset.
24-For a day, he should enter before the sunset and leave after the sunset.
25-For a day without night, he should enter before the sunrise and leave after the sunset.
26-For last ten days of Ramadan, he should enter in the night of 21st, after Subh of 20th is the best.
27-He should leave in the morning of 30th .
28 - I'tikāf does not prevent correting evil or enjoying good.
29-Worldly discussions, political debate or football analysis should be avoided.
30- Religious learning or interlocution with moderacy is allowed.
-Abu Lubaabah 2017.