*It is sunnah to praise ALLAAH before start*
Surah Al-Rahman(55), Verse 78:
تَبَارَكَ اسْمُ رَبِّكَ ذِي الْجَلَالِ وَالْإِكْرَامِ
Blessed be the name of thy Lord, full of Majesty, Bounty and Honour.
(English – Yusuf Ali)
jihad(this term is used commonly for only battlefield, not like what many non-muslims think. To kill non-muslims whereever they are found, which is a grave misconception and a gravious lie against Islam. And ISIS is not Islam)
Ibn Qudaamah (may Allaah have mercy on him) said:
In order for jihad to be obligatory there are seven conditions:
(2)being an adult
(3)being of sound mind
(6)being physically sound and
(7)being able to afford it financially.
With regard to being Muslim, adult and of sound mind, these are essential conditions for all Islamic duties, because a kaafir is not to be trusted in jihad an insane person cannot go for jihad and a child is physically weak.
reference : al-Mughni, 9/163.
ALLAAH knows best