‘When no extra action is required, and only an intention turns one good deed into ten, then it is a foolish thing and an unnecessary loss to make only one intention.’
(Fatāwā Razawiyyaĥ, vol. 23, pp. 157)
صَلُّوۡا عَلَى الۡحَبِيۡب صَلَّى اللّٰهُ تَعَالٰى عَلٰى مُحَمَّد
1. Without a good intention there is no reward for any good deed.
2. The more good intentions one makes the more reward he gains.
3. An intention signifies willingness of the heart. To verbally pronounce the intention is preferable provided it is present in the heart. In case of no intention present in the heart and one pronounces his intention verbally; it is not a valid intention.
4. To have a good intention when doing any good deed means that your heart must be focussed on that deed and you must be doing it for the pleasure of Allah عَزَّوَجَلَّ. The purpose of this is to differentiate between forms of worship or to differentiate between worship and a habit. Remember! Only verbal pronunciation or a thought or an inattentive