Dalam hal ini , jangan kita menganggap lekeh apapun amalan yang benar, even you send a sms to remind your friend about the kuliah.
And it is recorded that Imam As-Sadiq (a.s) said that his father said, "When you intend to do a good deed make haste to perform it – when you think about doing a good deed, hasten to perform it in reality – as you do not know what would happen thereafter, lest something may hinder it. Perhaps, the present situation is suitable for doing a good deed, but it might be complicated later and thus prevent you from performing good deed.
As-Sadiq (a.s) also says: "Start your day with a good deed – start your day with a good deed that Allah loves in your sayings and actions – And dictate your angels a good deed at the beginning of the day- because everyone of us has two angels who write down his actions. So, say to the angels: Write good, good deed, or good movement – and a good deed at the end of the day. He, the Most Exalted, forgives you. And if you start your day with a good deed and end it also with a good deed, Allah will forgive you for all the sins you committed in that day, between the first good deed and the second one.