Foreword

Verily, God Almighty, and His angels, and those who inhabit the heavens, even the ants in their holes and the fishes in their waters, bless the good teachers of mankind. HADITH OF AT-TIRMIDHI ON THE AUTHORITY OF ABU UMAMAH. 162 You will not enter Paradise unless you have faith, and you cannot be one of the faithful unless you love each other. Should I not tell you things which, if followed, will create love among you? One is to observe the practice of greeting each other. HADITH OF MUSLIM