The Prophet (peace and blessings be upon him) said:
"When one of you has performed ablution for the prayer, let him not interlace his fingers (that is, let him not do tashbik)."
Hadith Referenceصحیح الجامع الصغیر / حرف الألف / 446
Hadith Gradingالألبانی:صحيح
Hadith Takhrij[طس] عن أبي هريرة. صحيح الترغيب ٢٩٣ وزاد أحمد و [د] و [هـ] الصحيحة ١٢٩٤.