Liquid surfactant composition with a special combination of enzyme and stabilizer

Thermostable washing or cleaning agents are characterized in that they a) contains at least one protease comprising an amino acid sequence to that of SEQ ID NO. 1 amino acid sequence specified by the total length of at least 90% and increasingly preferably at least 90.5%, 91%, 91.5%, 92%, 92.5%, 93%, 93.5%, 94%, 94.5 %, 95%, 95.5%, 96%, 96.5%, 97%, 97.5%, 98%, 98.5% and 99% identical, and substitutions at least one of the positions 3, 4, and / or 199, preferably the amino acid substitutions S3T, V4I and V199I based on SEQ ID NO: 1, and b) borate in an amount of 0.5-5 wt .-%, preferably 1% to 4 wt .-%, more preferably 1.5-3 wt .-%.