Salam.
The story hidden from the month of Dzul Hijjah...
*A command from Allah toward His prophet, Ibrahim a.s. to slaughter his own son, Ismail a.s.
One day, when Prophet Ismail a.s. had reached his teen age, his father, Prophet Ibrahim a.s. dreamed that he had to slaughter Ismail, his only son. For the prophets and the messengers of Allah s.w.t., dream is one way to which God reveals wahy to His chosen prophet. After he was confidence that the dream was from Allah s.w.t., Prophet Ibrahim a.s. realized that he must obey the command asking him to slaughter his one and only prince, Ismail a.s. He sat all by himself thinking about the dream for so many time as he thought that the dream has been the biggest test he had ever faced in his life as a prophet of Allah s.w.t. He thought as a father who had been waiting for his child to be born after had been praying to God for so many years. A son who had reached his teen age and was the only hope to take care of the family. A son who was meant to be the only heir of the family and continue the life of his parents until the end, who his life had to be sacrificed by his own father's hand.
As it was stated in the Holy Quran:
"And when he (his son) was old enough to walk with him, he said: 'O my son! I have seen in a dream that I am slaughtering you (offering you in sacrifice to Allah). So look what you think!' He said: 'O my father! Do that which you are commanded, Insya Allah (if Allah wills), you shall find me of As-Sabirun (the patient)." (37:102)
And finally, after had listened to Ismail a.s's answer, without wasting time, Ibrahim had decided to fulfill Allah's command to start the sacrifice seemed his son was willing to be sacrificed to show that obedience toward his Creator.
When the time had come which Ismail a.s. was almost slaughtered by Ibrahim a.s, Allah s.w.t. revealed His verses as stated in the Quran:
"We called out to him: 'O Abraham! You have fulfilled the dream!' Verily thus do We reward the Muhsinun (good doers). Verily, that indeed was a manifest trial. And We ransomed him with a great sacrifice (kibasy - a ram)." (37:104-107)
This story is enough to show us how much high the obedience of both prophets Ibrahim a.s. and his son, Ismail a.s. to Allah s.w.t. Although they have to sacrifice their own life for Him, they are not scared. Because they know, they believe that whoever obey Allah s.w.t. with sincerity are sure will be rewarded and be blessed by Him both in this world and in the hereafter.
The story is the beginning of the act of Qurban which is considered as sunnah and it is recommended to be carried out during the celebration of Eidul Adha festival. This sunnah has been carried out by all Muslims from all over the world.