The Prophet (N) ordered Muslims to weep for his uncle .
The Prophet (N) ordered Muslims to weep for his uncle .amza the martyr of the battle of U9ud180, and he also wept for Imam .usayn before his martyrdom.181 This has been a normal practice for Muslims since the advent of Islam. No to Slandering and Excommunication The Sh:!a, then, in all these aforementioned matters have religiously legal and rational evidences which are mentioned in the detailed books which have been printed and are distributed in all Islamic countries.
So we ask why is there, from some quarters, slandering of the Imami Sh:!a and attributing impiety and unbelief to them? A Muslim should not call another an unbeliever or impious or slander him or her simply because of differences in legal opinion. Rather, one should try to understand the evidences of the other party and its sources for religious rulings.
In our opinion, Muslims should use their energies to unite and combat the enemies of Islam and rescue their lands from the pillagers, rather than false accusations of impiety and infidelity.
Mandatory Duties and Islamic Laws The Sh:!a believe that it is necessary to establish prayer (s}ala>h), and fasting (s}awm), and to pay the mandatory tithes (khums) and alms (zaka>h), and to make the .ajj pilgrimage, and to struggle in the way of Alla>h (jiha>d), and to enjoin the good and forbid the evil, and to be allied with the friends of Alla>h (tawalli), and to be disassociated with the enemies of Alla>h (tabarri), and to fulfil all the mandatory acts, and abstain from all prohibited acts, and to keep away from vices and develop virtues.
They believe that it is mandatory to implement all laws of Islam in all areas: acts of worship, social contracts, judiciary, testimonies, criminal punishments, reparations and all the other laws which are recorded in the books of Islamic jurisprudence and which come to almost one hundred thousand laws.
They also believe that all individual and social affairs should be consistent with Islam, in politics and economics, state and nation, morals and etiquettes, social interaction, marriage and divorce, crime and punishment and so forth. Islamic Morals The Sh:!a believe that it is incumbent to adopt virtuous morals and Islamic etiquettes and avoid ugly traits and religiously prohibited things. This is their habit and practice.